3 most Common reasons Why Your Air Conditioner Freezes Up

www.alwaysopen.ca
It is the hottest day of the year and yet your air conditioner is freezing up. Mark Boissoneault from Tradesman Heating and Cooling shares with you the three reasons why your air conditioner freezes up and what you can do to prevent that from happening.

[@codster200]

*So amazingly quiet and **Fastly.Cool** in my room! 42db is at a whisper level. I bought 2 and installed myself.Very sturdy bracket and easy to adjust to fit windows of different size. Absolutely fabulous units!!*

[@BriTube007]

Simple, Clear, Accurate, no blaring background music. One of the best posts I have ever seen on KZbin.

[@tradesmanmechanicalservice1668]

I appreciate the feedback Brian.

[@ithrowmonkey9534]

indeed the information was very accurate and my air cond is working properly again

[@menopassini9348]

Tradesman Mechanical Services Ltd. My tenant runs the A.C. when it is cool outside and the AC frezzes up. What is the lowest outside Fahrenheit temperature you can run a Central AC unit without doing damage.? Help.

[@dennissmith3624]

I couldn't have said it better

[@tradesmanmechanicalservice1668]

Thanks for your pleasant comments Brian!

[@wasblind4835]

Thank you so much . My air conditioning froze up today. I have change the filter in the air return. But I did not realize there was another filter in the heating unit where the air flows thru. So once I defrost I will check that. My dad died last year. And mom is clueless on everything he did about the house. They just had this unit installed last year before he died. And she can not find her paper work. So you have been so helpful. Thank you very much.

[@goosenutz2502]

Years later and you just fixed my a/c. Thanks

[@tfpvlogsandvids1339]

Thank you so much for making this video! Hot spell in the middle of Feb and we have been burning up in the house for three days waiting for the repair guy... It was the filters of course...we all get a great nights sleep thanks to you...i will sub and like for ya.

[@Elisummit845]

There is only 1 reason an evaporator coil freezes, if the evaporator drops below freezing level. All your answers are the causes of why it's dropping below freezing 😊. Ether way great video.

[@n4mwd]

Thanks for a good explanation. I have another reason for Ice-up on my AC unit. My digital thermostat was malfunctioning - turning on the compressor and not the fan. The lack of air flow that you mentioned freezes it up pretty quick. Thanks for confirming that the lack of air flow can cause icing.

[@juanmatos581]

Excellent, excellent presentation!

[@kylebrown2941]

Thanks. That was perfectly explained.

[@migueljuarez6217]

Thanks allot Mark and team, you just made me find the reason why my conditioner was freezing. It was both air bockage and a dirty filter. Thaks for sharing your knowledge to the world. Greetings from Monterrey, Mexico!

[@robertfrostl]

did it...and its working perfectly fine! Thank you so much!

[@caroledurand9572]

Thank you for this free information. Seems nothing’s ever free anymore. I had a new heating cooling unit installed in April, this is September and I can’t cool my place any cooler than 80. Finally, today a tech came out and fount it was frozen, no one ever looked before. Had seven service calls. My thought all along was that there is a restriction or a leak, because it’s colder in the crawl than the house. I don’t understand the a/c process,but, now I see why little clearer. Thanks again.

[@chrisk.4435]

Thank you for your thorough explanation! This was very helpful to us when we had difficulty with our a.c. unit.

[@RichardsWorld]

I was just watching this to reconfirm what I already knew before I start explaining to my friend why his AC is doing this. This was everything I remembered.

[@CB500Xoo7]

Excellent video, blazing summer heat and the ac is constantly puddling water under the handler. I changed the filter and hosed down the a pillar which was full of dust(desperate maneuver). I check the drain line and it's clear. I think it's low refrigerant and me having the vent in the second bedroom closed completely. A combination of things. Great video thank you.

[@2008flightgirl]

Very informative thank you.

[@tradesmanmechanicalservice1668]

Glad to have helped.

[@ninamarquez530]

My window unit started to freeze and I was freaking out because it's super hott!!!!! I live in central Florida and we are in the month of April and the weather has been crazy to say the least lol. I just wanted to thank you for this video it was very helpful and the instructions on how to defrost my window unit were easy to follow. You have literally saved my night!! 😂😂 Thanks again for the video!😉😀

[@tradesmanmechanicalservice1668]

Hi Nina, You are welcome. Make sure to keep that filter behind the front grille clean!

[@sergiotrevino6422]

Great explanation and use of filter and part of evaporator coil to demonstrate. It was simple and not overly complicated. Thanks again Mark. May God continue to Bless your business.

[@tradesmandrcool]

Thank you Sergio for your response. Have a great day!

[@kevosebasio7294]

Thanks mate. Bloody AirConditioner frozed up twice today. Thanks to you i know what happening 👍 G'day Mate. To hot here at the Tip of Australia 🌞⛅

[@mattthomas1217]

Thank you so much I'm new to the field and had a compressor and sucton line In ice and I knew it was a leak in the system but you also said that if you block all the vents that can be the issue as well.

[@harrypatodiya9356]

Very well explained. Wish you would be closer to us, I live in South West Virginia and purchased 22 wall thru PTAC units(heat pump) and brand new units are freezing up while running on the heat setting. Feeling helpless.

[@jasonflores8085]

Thank you sir... Very informative and concise

[@tradesmanmechanicalservice1668]

The Canadian way has been to apologize if you are offended by our language terms. Rather than that I will simply comment that the internet has a way of sharing information globally without apologizing.

[@mcmastertube]

Useful, thoughtful and easily digestible information. Thank you!!

[@702ringo1]

Excellent video! Thanks for the info-very helpful!!!

[@tradesmanmechanicalservice1668]

Happy to have helped!

[@jefflinke2772]

Better than 90% of others explanations. Good Job. Now I know for sure what is going on, thought it was pump or drain clog, but air flow problem.

[@jjlovecraft3257]

Thank you sir so direct! I’m subscribing for sure ❤️

[@savysan54]

Thank you, for a better understanding

[@onifadeoluwafemi3742]

You are awesome, thank you ,your advice was helpful

[@LUckybones25]

Thank you very much for helping me to understand my A/C system better.

[@annettesykes2642]

loved it very helpful thanks

[@michaelking42]

Excellent explanation mate, thank you!

[@bhamblin2022]

Great advice. Really helped thanks

[@donmasterson635]

Very informative. Thank you.

[@kimberlindy]

Hi, thanks for the video! Is there a way to know how many pounds of coolant need to be added to a system to fully charge it, before the coolant is actually added? Do the gauges when checking tell you how many pounds low it is? Also...with a 4.5 ton A-coil, should I expect an HVAC service person to take it out and lug it upstairs and outside to clean it, or is cleaning in place what I should expect?

[@SuperMojo1958]

Great information! Thank you!!

[@RareAmourCaptures]

Thank you so much. You just saved me a lot of money. I was about to call a tech and with your advice, i was able to solve it by myself. Keep it up sir

[@tradesmanmechanicalservice1668]

Thank you for your comments today. always appreciated!

[@estherharrow8503]

Great posting, agree with Brian. It's simple and easy to understand. Thank you.

[@tradesmanmechanicalservice1668]

Glad to help Esther.

[@juanylinaylaroyi]

Thank you so much for your help and explainations

[@tradesmanmechanicalservice1668]

My Pleasure !

[@flamekeeper59]

In most cases it's all about thermostat malfunction. resulting the AC unit to operate without cutout. second is some leaking ( freon) in the system and third is that dirty air filter . Big thanks for this. man! From start to end you deliver it well and it surely does add some information. More power 😉

[@adeyemibabatunde1814]

Thanks If the refrigerant level is too high, how does it affect the ac performance

[@MikeSparksTn]

Thank you very much from Smyrna, Tennessee.

[@tradesmanmechanicalservice1668]

Yes you are correct. A contactor or thermostat as well as a pinched wire that shorts out Y to R can all be a reason that would cause the system to stay running and over cool and freeze up the evaporator. There are a few other conditions also not mentioned here as well. My intention for this short video was simply to offer a basic explanation of what I consider to be 3 of the most common reasons that most homeowners might encounter. Thank you for your comment.

[@izzycamaro]

Thanks for the nice video, very helpful, I appreciate that there is no music but great explanation.

[@jorgepardiez234]

Very clear and simple . Thank you .

[@Thebestme2024WWJD]

Sooooooooooooooooooooooooooooooooo very helpful I was looking into getting another unit. thank god i saw this video. I'll try this first. Thanks!!!!!!

[@matthewsolomon4973]

Yes we are having problems with are ac too it keeps freezing up. But I watched this video and it was very helpful so not to turn the ac to 40 degrees but have it up a little bit. I did clean all the filters out up above the ceiling. But I think all the vents are open so what do I do next from there

[@walterhildebrand7300]

Straight to the Point, Very Clear and informative. Great Video!

[@tradesmandrcool]

Thanks for your comment today!

[@YLZN0013]

Very useful information. Thank you.

[@robertrobles2078]

Good and simple information. Thanks

[@sreeniyalamarthi6668]

Thanks Excellent summary.

[@MrBobhell]

Excellent video - 1 question I have a York Aircon installed approx 5 years ago. Always have clean filters, changed regularly. My fear is that the unit is "too small" for the house square footage. Its aYork LX YCJD 13 Seer. My house square footage is 1800 sq ft above grade. Of course the company that sold and installed it have gone out of business. It is freezing up even if I set it to 23C - any thoughts?

[@thedailynewsivanluvig2981]

thank you AC man, very helpful.

[@tyee4u]

Very helpful thanks for posting

[@kaliboyy7163]

Thank you for the tips. I have turned my machine off, and I will go to sleep, and hopefully it will have all melted by tomorrow morning. I am one of those people that like to live in a freezer, therefore, I usually have my unit running at 16°. I guess I know now to keep it at 20°. Hopefully that’s the only issue, and that it’s not an issue with the Freon that you mentioned, in which I would need to call a professional to come help me out with that matter. I appreciate the clear, concise, straight to the point video that you have provided, and I will provide feedback as to whether or not, it was a success for me. Thank you.

[@RC-Heli835]

Thanks for the video man! My dad has a problem with his unit freezing up. The unit is installed in a concrete basement garage and I have an idea that it doesn't get enough warm air through the system because the basement stays cool practically without air but maybe it actually is low on freon?.

[@alexandrameganco8104]

Thank you sir it helps a lot .

[@magnang]

Thanks for the tips. I was having a lot of issues with my old coil freezing. Turns out I had some airflow issues. One of the returns was blocked during previous renovation work.. My fan speed was set to low. The old A/C unit blows ice cold after fixing these issues.. I have a feeling coughing up cash for a new one would have run into the same issues soon enough.

[@Bill2008ful]

Thank you so much for educating the reasons for AC freezing. It happened once to my AC because I forgot to change the air filter.

[@tradesmanmechanicalservice1668]

Happy to have helped. Have a great day!

[@asmrwithrich2283]

Thank u so much, after watching your video I went to check my air filter , WOW!!! It was so far gone, went n changed it ! Worked like a charm!! Thank u again!!!!

[@tradesmanmechanicalservice1668]

My Pleasure. Glad it worked out!

[@Michelle_9_27]

Good info! Thanks for sharing

[@StevenMcFlyJunior]

Great help. I needed this to figure outs out. (PS) don't think I don't see that York International patch. ;-) York PA ftw!

[@truehelper5590]

Thank you for the info.

[@ilanalinder1160]

Thanks for your help!

[@nathansunnaa7222]

No doubt very informative thank ya

[@jet4809]

Extremely informative, thank you for sharing

[@tradesmanmechanicalservice1668]

You are most welcome. Have a great day!

[@lionden4]

Thank for the information! Very informative..

[@ryandsouza4621]

great video!

[@mikes5264]

Mark thanks your video it was extremely helpful to me. At first when I took the cover off the evaporator looked clean. When I finally figured a way to remove the small cover, so i could see the inside of the evap the crud in there was incredible. I took a toothbrush and a Shop-Vac cleaned it. i wish i could have uploaded photos

[@chisom601]

I found this very informative. Thanks a Lot

[@tradesmanmechanicalservice1668]

You are most welcome Chisom.

[@Sonny2344]

This is by far the best video for simple minded people like myself for explaining the freezing problem on your a/c unit. Thank you very much👍🏼

[@kattyblances1780]

Hello sir. I live in Phils. my Kolin AC is freezing when its night time but works normal in daytime. whats the problem of this?

[@joannatomgrimmer3641]

Thanks. Good information.

[@alexmonsalve1999]

Thank you very helpful. Our A/C is o my two and a half years old since our home was built and it's leaking. I had two bathrooms and two closet vents closed on the second floor. I just opened them and I'm praying that solves it.

[@tradesmanmechanicalservice1668]

Make sure that your drain hose is clear as well. Good luck!

[@hanwin651]

Thanks a lot

[@darwincarranza4698]

very valuable information i thank you sir

[@joyh78]

Thank you very helpful

[@jamesroseborough4809]

Hello Mark! I just had a company told me I was low on freon and that is the reason why my coil was frozen. The technician advises me that I needed freon. He told me I needed at least 3 lbs. I knew it was BS. My air handler still leaking water on the backup drain line. There is barely water in my main drain pan. What do I need to do?

[@morenonavarro6796]

Thank you very much sir.....

[@TheCaptainSocks]

Extremely helpful, thank you

[@tradesmandrcool]

Nice! Have a great day.

[@DGPoore]

very good explanation...

[@Ravinder.Dhingra]

I loved it. Exact info I was looking for. Thanks

[@gmoneyga84]

what about the outside Temperature? (hot during the day but cools down at night with ac still running)

[@pattyt8598]

thank you very helpful

[@robertl.fallin7062]

will variable flow units have these same problems? I have a mini split , oversized for heating and have never had any issues in cooling. I see whole house systems now advertising variable flow which is ( I assume) a function of the compressor motor .

[@sclifton8709]

My a/c stopped working and coils froze up a bit when I cut the air off for a few days and I went to turn it back on. I think maybe I had it turned too low from jump. It was 88 in the house and I put the air on 77. Do you think the unit taking a few days off,then me turning it back on May be the issue?

[@garytanno7453]

Thank you!

[@Messiah717]

My problem was caused by being a little low on freon. Made sure the filter was changed but was still freezing up. Got the system charged correctly and now back to working perfectly.

[@josemichel9807]

wow I could truely say this is the best information I ever heard about an A/C thanks

[@tradesmandrcool]

You are welcome Leonardo. Stay cool!

[@williamparada4630]

Cleaned my radiator with a torch to get rid of the dust, a few days pass and now the radiator is frozen more than 3/4, searched you on yt cranked the ac down a little, now the 15+ year old ac blowing like its brand freaking new, Thanks

[@markryan9364]

Good info........ Thanks!

[@aurelienyonrac]

Got it. Thank you.

[@conchitareyes790]

Thank you !! I have been telling my tenant that she MUST clean her house because the AC filters get filthy within 15 days and the AC freezes. Just today it is the 5th time this year alone. She told me she needs a new bigger unit. My answer: Ha,ha,ha,ha,ha....

[@spanishdancer6221]

Great info!

[@oscarjames593]

Take a shot every time he says “uhh”

[@botsog1177]

Sir THANK'S A LOT !

[@billcunningham8485]

Excellent video. My sister had her HVAC freeze up over night. I think her issue is one of these - air filter and or the temp turned down too low. Thank you for posting a clear and concise helpful video.

[@tradesmanmechanicalservice1668]

My pleasure. Thanks Bill for your comments!

[@adeyemibabatunde1814]

@@tradesmanmechanicalservice1668 If the thermostat is working, I think turning temperature too low (16°C) alone should not cause freezing

[@masaladosa8868]

Hi, I have problem : low press pipe outside condensor frosted after 5-8 hrs running, high press pipe at evap area feels cool , the temp max reached only 24 C inside house but I set thermostat 22C. I check filter all the time.. and clean the condensor done.The AC only 5 years old pass the waranty. Thank you

[@mysciences]

Hi great video thank you very much for posting it. I had a question I bought four AC units 1 Danby 12k btu and the other 3 Frigidaire 5k btu none of which have holes for the water to drip out in the rear. They are mounted into the wall. Do I need to make my own hole in the back there does not seem to be any plug to take off? Thank you

[@tradesmanmechanicalservice1668]

Hello Hose. Chances are if there is no drain hole then the system is designed to use a fan blade that internally scoops up the condensate water as it transfers from the front cooling coil to the rear fan blade and splashes it onto the rear coil where it evaporates. This is a newer design that makes it more efficient.

[@renehiguera1323]

thanks